GstPlugin Dynamically loadable Elements GStreamer is extensible so GstElements can be loaded at runtime. A plugin should implement this function called plugin_init. It will be called by the loader at statup. @module: The GModule it was loaded from @Returns: The plugin or NULL is an error was detected. @name: @Returns: @plugin: @longname: @name: @Returns: @name: @Returns: @name: @Returns: @plugin: @factory: @name: @Returns: @Returns: @name: @Returns: